Specialty Focused, Multidisciplinary Teams

Delivery of successful radiation therapy requires the co-ordinated efforts of a dedicated group of staff with different skill sets.


Our Radiation Oncology Team comprises:

Radiation Oncologists

Radiation Oncologists (ROs) are medical doctors who are qualified to give radiation therapy. The RO’s role is to determine the suitability of radiation therapy for each patient, and to give the final approval for the radiation therapy plan. During the course of treatment, the RO’s are also responsible for reviewing patients for side effects. After treatment is completed, the RO determines the frequency of follow-up and necessary tests.


Our team of Radiation Oncologists include:


Dr Ivan Tham

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full profile.


Dr Wong Lea Choung


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Dr Vicky Koh


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Dr Keith Lim

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Dr Leong Cheng Nang


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Dr Jeremy Tey


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Dr Koh Wee Yao


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Dr Francis Ho


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Dr Balamurugan Vellayappan



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Dr Timothy Cheo

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Dr David Chia


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Radiation Therapists


Radiation Therapists are a group of allied health professionals who are trained to operate the various systems required in the delivery of radiation therapy to our patients. These systems include data acquisition systems like CT simulation, planning systems for designing radiation therapy plans, as well as treatment units like linear accelerators that ultimately carry out the treatment. In this role, they work closely with the rest of the Radiation Oncology team in facilitating and managing patients who need radiation therapy.

The specific duties of Radiation Therapists include:

  • Fabrication of immobilisation devices for accurate treatment delivery
  • Simulation for tumour localisation and planning through the use of imaging modalities such as Computed Tomography
  • Designing of treatment plans and dose calculations in collaboration with radiation oncologisst and physicists
  • Reviewing of prescriptions, images and approved treatment plans to ensure that the information is valid before treatment delivery
  • Ensuring daily set-up reproducibility for safe and accurate treatment delivery
  • Delivering of radiation treatment and monitoring of patient’s condition during treatment delivery
  • Advise patients on pre-treatment preparation, procedures and possible side effects of radiation treatment

Radiation Therapists also play an important role in clinical research and implementation of new techniques and protocols in cancer treatment to provide holistic care to our patients.

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Radiation Physicists


Radiation Physicists provide the scientific and technical support in a radiation oncology department. They assist in creating, implementing and monitoring the procedures which allow the best treatment using radiation, taking into account the protection and safety of patients and others involved in the treatment process.


Radiation Physicists make sure that all equipment meet international and national standards. This can include machines such as linear accelerators, CT scanners, treatment computer systems and also radioactive materials. They are also responsible for the design of new radiation oncology facilities and the commissioning of new treatment equipment.


Radiation Physicists train other professional groups in radiation oncology on topics such as radiation physics and radiation safety. They also have both a primary and supporting role in research activities in a radiation oncology department.


In their role, Radiation Physicists are often consulted by Radiation Oncologists and Radiation Therapists to provide advice as to the best use of medical radiation for treatment and protection, so that the radiation dose recommended by the Radiation Oncologist and planned by the Radiation Therapist can be delivered to the patient correctly.

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Radiation Oncology Nurses


Radiation Oncology Nurses are licensed registered nurses who work collaboratively with Radiation Oncologists and Radiation Therapists to care for patients and their families at the time of initial consultation, while receiving radiation treatment, and during follow-ups.

Radiation Oncology Nurses provide the following important functions leading up to a patient’s successful treatment.


  • Symptom Management and Patient Education
    Prior to the initiation of radiation therapy, Radiation Oncology Nurses provide counseling for patients and their caregivers on the possible side effects of treatment they may experience. During radiation therapy, they will assess patients for ongoing toxicity and advice them on the appropriate nursing care. Where necessary, Radiation Oncology Nurses may also actively manage the symptoms, for instance, applying necessary dressing to skin affected by radiation therapy.
  • Assistance in Medical Procedures
    Sometimes, radiation therapy may involve specialised procedures requiring placement of applicators, sedation or clinical monitoring. In these instances, our Radiation Oncology Nurses are often called upon to assist the Radiation Oncologist to ensure the procedures are done effectively and safely.
  • Emotional Support
    Recognising that the period of radiation therapy can be a difficult time for patients and their loved ones, Radiation Oncology Nurses are available to provide due support and counseling. Our Radiation Oncology Nurses can help patients access various community resources and support groups, as well as assist with issues such as home care, hospice or medical equipment.

Patient Care Associates and Patient Service Associates 

Patient Care Associates (PCAs) and Patient Service Associates (PSAs) are ancillary staff who play key roles in the coordination of patient care and general administration. They are responsible for registration of patients upon arrival, handling of appointments including referrals and other necessary investigations, and assisting the doctor during consultation.


When a decision is made for radiation therapy, they will provide the necessary financial counseling before treatment is initiated. Our PCAs and PSAs work closely with the different teams in the Radiation Therapy Centre to help create a better experience for our patients.

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